Pressure-regulator



(No Model.) N; S-LEEMAN;

PRESSURE REGULATOR. No;-260,1Z9.' I Patentd June 27,1882.

WITNESSES I .INVEN TOR I Jmdwwfldlwm.

' BY I ATTORNEY N. PETERS. vmm-Limo n he'r, Washin ton. 0.6.

UNITED STATES PATENT OFFICE.

NATHANIEL SLEEMAN, OF BIRMINGHAM, CONNECTICUT.

PRESSURE-REGULATOR.

SPECIFICATION forming part of Letters Patent No. 260,129, dated June 27,1882.

Application filed March 18, 1882. (No model.)

To all whom it may concern:

Be it known that I, NATHANIEL SLEEMAN, of Birmingham, New Haven county,State of Connecticut, have invented certain new and useful Improvementsin Gas-Pressure Regulators, of which the following is a full, clear, andexact description, reference being bad to the accompanying drawing,forming part of this specification.

My invention relates to improvements in the gas-pressure regulator forwhich Letters Patent of the United States were granted to me September23, 1879, No. 219,990; and my invention consists in the combinations ofdevices hereinafter shown and described.

In the single figure of the drawing is shown a vertical centralsectional view of an apparatus embodying my invention. 7

A is the case or shell'of the apparatus, preferably metallic andapproaching the conical in form. B is the float, which is inclosed inthe shell, as shown, and which corresponds concentrically in form to theform of the shell. The float B, at the center of its crown, is fixedlyattached to the stem or rod 0, and this stem or rod extends downwardcentrally through the tube D, which extends upwardly centrally of theshell and float from and through the bottom of the said shell, beingwholly open at its top, where it opens into the float and has thecross-piece h, which supports the rod or stem C. At the bottom of theshell, and around the tube D at that point, is attached the valvecasingE, substantially as shown.

Withinthe tube D, and preferably forming part of it, and at its lowerend and reaching down into the valve-casing, is the extension or tube F,the lower extremity of which is closed by being drawn inward, as shownat f, to constitute the exteriorly rounded or pointed end. Communicationis bad between the tube D F and the globe-valve through an opening, f,in the wall of F. The rod or stem C extends through this pointed orrounded end of F, and carries on its extremity the annular or ring valveG, which works in the diaphragm E of the globe. The upper face of G isbeveled or rounded inwardly at g to fit against the exterior face of theend of F, and thus constitutes avalve-seat on the top of the valve Gabove the diaphragm E. The valve G has exteriorly at its lower edge theflaring or beveled wing g, which fits against thecorrespondingly-beveled rim e of the valve-opening in the diaphragm,thus constituting a valve-seat at the lower edge of the valve below thediaphragm. The valve is thus a double valve. The gasinlet is below thediaphragm, at e, and the gas-outlet is at e on the other or upper sideof the diaphragm. The shell has a lid or cover, H.

- These devices, substantially as described, are shown in my LettersPatent hitherto referred to, and their operation is therein fully setforth. I do not therefore intend to claim them herein, and for a morefull explanation of their operation than is obvious from the descriptionherein given reference is made to said patent.

I will now proceed to describe the improvements which I have made, andwhich are the subject-matter of this application for Letters Patent.

At the lower rim or edge of the float B, the lower portion or body ofwhich is downwardlytapering or conical, as shown, I form theinwardly-turned annular flange or bottom plate, b, which extends fromsaid lower rim of B to near the face of the tube D, and at the edge ofthe bottom plate, adjacent to said tube D, I

form the upwardly-turned annular flange b, which is thus concentric withsaid tube D, as shown. In the bottom plate, I), I form the smallaperture W, as shown.

By means of these described devices, when the gas-pressure is increasedthrough the inlet 0, and is consequently felt in the float B, and tendsto elevate the float in the liquid contained in the apparatus, and thusto more or less close the valve G, it is evident that the liquid in thefloat will be displaced therefrom and escape into the chamberof theshell through the apertures 11?, and through the passage between thewall of the flange b and the exterior of the tube D, and will thereforemove from the float into the shell with less violence and suddennessthan when the entire space between the lowerrim of the float and'theexterior of tube D is an open communication between the float and theshell. Also, when the gas-pressure is diminished, and the tendency ofthe float is consequently to descend and open more or less the valve G,the return of the liquid into and its rise within the'float from thechamber of the shell will be in like manner less violent and sudden thanwhen the entire bottom of the float is an open space. It is evident,therefore, that these described devices will secure a more steady anduniform movement of the float in the liquid under the variation ofgas-pressure, and that when any sudden or considerable change in thepressure occurs the tendency of the float to jump or oscillate intheliquid andthus cause a flickering or irregularity of the flame at thegas-burner will be obviated.

The diaphragm E of the valve-casing E is placed in my improved apparatusbelow the line of the outlet 0 and the interior face of What I claim asmy invention, and desire to secure by Letters Patent, is

1. In a gas-pressure regulator, the combination of the shell A and thefloat B, having at itslowcr rim theinwardlyturned bottom plate, I), withthe perforations I1 and upwardly-extending annular flange Zr, togetherwith the tube 1), the stem or rod ('1, the annular double valve G, andthe diaphragm E of the globe E, all substantially as described,and forthe purpose specified.

2. In a gas-pressure regulator, the combination of the shell A, float B,tube D, stem or rod U, annular double valve G, and the globe E, havinginlet 0, outlet 0 and diaphragm E, with the central orifice, e, and thesurface a, inclined as described, all as and for the purpose specified.

Witness my hand this 16th day of March, A. D. 1882.

NATHANIEL SLEEMAN.

In presence of P. B. VERMILYA, A. G. N. VERMILYA.

